英文文献：The Impact Of Swine Production On Land Values In Illinois-养猪对伊利诺斯州土地价值的影响
英文文献作者：Huang, Haixiao,Sherrick, Bruce J.,Gomez, Miguel I.,Miller, Gay Y.
英文文献摘要：
Based on a spatiotemporal hedonic farmland price model and county-level data in Illinois from 1979 to 1999, we examined the impact of swine production on farmland values. Our results show that, in addition to the conventional determinants of farmland values, an increase in swine production intensity has a negative relationship with farmland values while an increase in swine operation scale had a positive association with farmland values at the county level in Illinois. We also estimate the impact of changes in the Illinois swine industry over the period 1980-1999 on farmland values at the state level and find that changes in swine inventory and scale of swine operations have led to changes in farmland prices from $-10.56 to $62.96 per acre. In general, the changes in Illinois swine industry increase farmland values in Illinois.

基于1979 - 1999年伊利诺伊州的农地价格时空模型和县级数据，我们考察了养猪生产对农地价值的影响。结果显示，在伊利诺斯州，除了农田价值的传统决定因素外，养猪生产强度的增加与农田价值呈负相关，而经营规模的增加与农田价值呈正相关。我们还估计了1980-1999年间伊利诺斯州养猪业的变化对州一级农田价值的影响，发现养猪数量和经营规模的变化导致农田价格从每英亩-10.56美元变化到62.96美元。总的来说，伊利诺伊州养猪业的变化增加了伊利诺伊州的农田价值。